E-M1 Mk II Card Issues

Feb 15, 2014
State of Ignorant Denial
I have had an ongoing issue with my E-M1 Mk II when it writes to the cards. I have a 64 GB SanDisk Extreme Pro 300 MB/s card in slot 1. It was purchased new in early February. In slot 2 there is a Lexar Professional 1000x which was new in 2016. In the H1 Card Slot Settings it is set to Auto Switch. Photo Save Slot is set to 1, Video Save Slot is set to 2. Today I took 223 photos, photos 1-4 went to card 1, 5-7 to card 2, 8-205 card 1, and 206 to 223 to card 2. The menu was never accessed during the shooting. Both cards have had there contacts cleaned. I have taken 60,000 to 75,000 photos with this 3 1/2 year old camera. So WTF is going on?

Egregius V

Mu-43 Top Veteran
Jun 14, 2015
Massachusetts, USA
Real Name
Rev. Gregory Vozzo
That's a good suggestion. I wonder, also, if there's something about the file system on the cards. Maybe try formatting both cards in the camera if that hasn't been done in a while?
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